Sports equipment

Abstract

This exercise equipment allows you to adjust the weight by changing the elastic force applied to the wire. [Solution] The elastic module includes a wire roller around which a wire 200 is wound, a rotating shaft that rotates integrally with the wire roller, a spring gear rotatably mounted on the rotating shaft, and a spiral spring installed inside the spring gear to provide elastic force to the wire. The spring gear is characterized by comprising a gear body that is open on one side so that the spiral spring can be inserted, a cover connected to the gear body that is open on one side and having radial projections formed on its inner surface that contacts the spiral spring, and a spring fastener that fixes the inner end of the spiral spring to the rotating shaft.

Description

Technical Field

[0001] The present invention relates to a sports apparatus, and more particularly, to a sports apparatus capable of adjusting the weight by adjusting the elastic force applied to a wire.

Background Art

[0002] Generally, a sports apparatus is used for health promotion and physical training, and various types of sports apparatuses are used depending on the exercise method and the body part to be trained.

[0003] The types of the sports apparatus can be classified into aerobic exercises such as a running machine and a cycle for improving stamina rather than muscle strength, and muscle strength exercises for improving muscle strength.

[0004] Among these, the muscle strength exercise is to train muscle strength through the process of lifting a weight block of a certain weight or more using a specific part of the body.

[0005] At this time, in order to lift the weight block, it is not to directly lift the weight block, but to pull the wire connected to the weight block, or to connect a gripping frame to the weight block and lift the gripping frame, etc., to indirectly lift the weight block.

[0006] However, such a muscle strength exercise apparatus has the inconvenience that the weight block must be replaced or added to adjust the weight to suit the user, and there is a risk of a falling accident when replacing or adding such a weight block.

[0007] In addition, due to the need for a large number of weight blocks, an appropriate installation space must be secured, and there is a problem that it is difficult to easily move the installation position if necessary.

Prior Art Documents

[0008] [Patent Document 1] Korean Patent Publication No. 10-2006-0117466 (Published December 14, 2005) [Patent Document 2] Republic of Korea Patent Registration Publication No. 10-1573410 (Registered November 25, 2015) [Patent Document 3] Republic of Korea Patent Registration Publication No. 10-2137503 (Registered on July 24, 2020) [Patent Document 4] Republic of Korea Patent Registration Publication No. 10-2490580 (Registered January 16, 2023) [Overview of the project] [Problems that the invention aims to solve]

[0009] This invention was devised to solve the problems described above, and aims to provide an exercise device that can adjust the weight by adjusting the elastic force applied to the wire.

[0010] Furthermore, the present invention aims to provide exercise equipment that can be used in confined spaces and whose installation location, such as on a wall or floor, can be easily changed as needed.

[0011] Furthermore, the present invention aims to provide an exercise device that enhances the durability of the elastic module and allows the movement of the spring during muscle exercise to be smoother using wires.

[0012] Furthermore, the present invention aims to provide an exercise device that can improve the user's ease of movement by reducing the frictional force between the spring gear and wire roller, which constitute the elastic module, thereby allowing the spring to move smoothly. [Means for solving the problem]

[0013] To achieve the above objective, the present invention provides an exercise device comprising a case having a space formed inside, an elastic module installed in the space and providing elastic force to a wire extending to the outside of the case, and an adjustment module installed on one side of the elastic module and adjusting the elastic force applied to the wire, wherein the elastic module includes a wire roller around which the wire is wound, a rotating shaft that rotates integrally with the wire roller, a spring gear rotatably mounted on the rotating shaft, and a spiral spring installed inside the spring gear and providing elastic force to the wire, and the spring gear comprises a gear body open on one side so that the spiral spring can be inserted, a cover connected to the gear body with one side open and having radial projections formed on its inner surface that contacts the spiral spring, and a spring fastener that fixes the inner end of the spiral spring to the rotating shaft.

[0014] The wire roller in this invention is characterized by comprising a shaft hole portion that is inserted into the rotating shaft and fixedly mounted on the rotating shaft so as to allow the rotating shaft to rotate, a connecting bar that extends radially from the shaft hole portion, and a winding groove portion formed in a ring shape at the outer end of the connecting bar into which the wire is entangled.

[0015] The present invention is characterized in that the upper and lower ends of the shaft hole portion are formed to be higher than the upper and lower ends of the connecting bar and winding groove portion.

[0016] In this invention, the connecting bar is formed lower than the upper and lower ends of the winding groove.

[0017] The spring fastener in this invention is characterized by having a bending groove formed so that the inner end of the spiral spring can be bent and fixed in place.

[0018] In the present invention, the case includes a bottom surface that contacts the ground and an inclined surface that is formed to incline upward at a certain angle with respect to the bottom surface.

[0019] In the present invention, the inclination angle of the inclined surface is characterized in that it is 10 to 20°.

Advantages of the Invention

[0020] According to the exercise equipment of the present invention, since the elastic force applied to the wire is adjusted to adjust the weight, there is no need for a separate weight block, and thus there is no risk of accidents such as dropping during the replacement or addition of the conventional weight block, resulting in an improvement in safety.

[0021] In addition, according to the exercise equipment of the present invention, compared with the exercise equipment using the conventional weight block, it is cheaper, regardless of the installation space, and has the effect of being easy to install and move.

[0022] In addition, the exercise equipment according to the present invention has a compact size and is easy to store and maintain.

[0023] In addition, the exercise equipment according to the present invention has the advantage of minimizing the frictional force between the spiral spring of the elastic module and the spring gear, reducing the noise during exercise, and enabling smooth movement of the spring.

[0024] In addition, the exercise equipment according to the present invention has the advantage of good durability because the spiral spring is firmly fixed inside the spring gear.

Brief Explanation of the Drawings

[0025] [Figure 1] It is a top perspective view of the exercise equipment according to an embodiment of the present invention. [Figure 2] It is an exploded perspective view of the exercise equipment according to an embodiment of the present invention. [Figure 3] It is an exploded perspective view of the upper case of FIG. 1. [Figure 4] It is a lower side exploded perspective view of the upper case of FIG. 1. [Figure 5] Figure 1 is a perspective view showing the upper case removed. [Figure 6] Figure 5 is an exploded perspective view. [Figure 7] Figure 1 is a side view showing the angle of the inclined surface of the exercise equipment. [Figure 8] This is a perspective view of the elastic module and the adjustable module. [Figure 9] This is an exploded perspective view of the elastic module. [Figure 10] Similarly, this is an exploded perspective view of the elastic module. [Figure 11] This is a disassembled perspective view of the spring gear. [Figure 12] Similarly, this is a disassembled perspective view of the spring gear. [Figure 13] These are perspective and side views of a wire roller. [Figure 14] These are perspective and side views of a wire roller. [Figure 15] This is a diagram showing the operating state of the adjustment module. [Figure 16] Similarly, this is a diagram showing the operating state of the adjustment module. [Figure 17] This is a plan view of the rotating member of the adjustment module. [Figure 18] This is a perspective view of another embodiment in which the exercise equipment according to the present invention is installed on a vertical support stand. [Figure 19] Figure 18 is an enlarged perspective view of the rear side. [Figure 20] Figure 18 is an exploded perspective view of the rear side. [Modes for carrying out the invention]

[0026] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments described below are merely for the purpose of explaining the invention in enough detail that a person with ordinary skill in the art to which the present invention belongs can easily implement it, and this does not mean that the scope of protection of the present invention is limited. Furthermore, in describing many embodiments of the present invention, the same reference numerals will be used for components having the same technical features.

[0027] Examples Figures 1 and 2 are perspective views of an exercise device according to one embodiment of the present invention, and Figures 3 and 4 are exploded perspective views of the exercise device shown in Figures 1 and 2, respectively.

[0028] According to one embodiment of the present invention, the exercise equipment 100 is a device for muscle strengthening exercises, in which wires 200 are pulled out from both sides of the upper surface of a case 300, and an elastic module 600 that provides elastic force to the wires 200 and an adjustment module 700 for adjusting the elastic force are installed inside the case 300.

[0029] The end of the wire 200, which is pulled out to the outside of the case 300, is equipped with a gripping part (not shown) that can be grasped by a user, such as a handle, or pulled by a part of the body such as an arm or leg. After pulling the wire 200, if the force is removed, the wire 200 is pulled back into the case 300 by the elastic force provided by the elastic module 600.

[0030] This allows the user to perform muscle exercises by grasping the wire 200, pulling it forcefully, and then repeating the pulling motion. For example, the user can stand on the upper side of the case 300 and exercise by pulling the wire 200 in the vertical direction of their body with both hands. As another example, the case 300 can be fixed to a wall or vertical support stand 10 (see Figure 18), and then the user can exercise by pulling the wire 200 in the front-to-back direction of their body.

[0031] An exercise device 100 according to one embodiment of the present invention includes a case 300, a wire 200 that is drawn out from the inside of the case 300 to the outside, an elastic module 600 installed inside the case 300 that provides elastic force to the wire 200, and an adjustment module 700 installed on one side of the elastic module 600 that adjusts the elastic force applied to the wire 200.

[0032] Case 300 includes a lower case 400 and an upper case 500 that are joined together so as to be separable from each other in the vertical direction. In the case of case 300 shown in the drawings, the overall shape is a rectangular ellipse, with the middle of one long side slightly protruding outwards, but this is only one embodiment of the present invention, and the overall appearance of case 300 can be appropriately selected as needed.

[0033] The lower case 400 has an open top and an internal space formed to accommodate the elastic module 600 and the adjustment module 700. The upper case 500 is detachably connected to the upper end of the lower case 400.

[0034] Figures 3 and 4 are exploded perspective views of the upper case.

[0035] As shown in Figures 3 and 4, the upper case 500 includes an upper frame 510 that is coupled to the upper end of the lower case 400, and an upper plate 520 that is coupled to the upper side of the upper frame 510. The upper surface of the upper frame 510 has a low step formed around it, into which the upper plate 520 is inserted and coupled.

[0036] A first through-hole 511 is formed on one side of the central part of the upper frame 510, and the upper end of the module housing 410 (see Figure 5), described later, protrudes onto the top of the case 300 through this first through-hole 511 and a second through-hole 521 of the upper plate 520, described later. Multiple circular reinforcing leaves 519 are formed on both sides of the first through-hole 511 so as to support the load when a user stands on the upper case 500. The reinforcing leaves 519 are connected to the reinforcing leaves 403 of the lower case so that the case can be fixed in place.

[0037] Furthermore, a pair of pull-out sections 513 are formed protruding from each side of the upper frame 510 in the longitudinal direction. In this case, the upper surface of the pull-out section 513 can be formed as a curved surface with a recess in the center, and a pull-out hole 514 for pulling out the wire 200 is formed through one side of the upper surface of the pull-out section 513. A guide roller 515 is rotatably installed below the pull-out section 513 on the bottom surface of the upper frame 510 to guide the direction of wire 200 pulling out so that the wire 200 can be pulled out to the outside of the case 300 through the pull-out hole 514. In addition, the upper frame 510 is provided with mounting holes 512 to which the mounting housing 517 of the mounting section 516 can be fixed in position.

[0038] In addition, the bottom surface of the upper frame 510 is provided with a pair of mounting parts 516, one on each side of the first through hole 511. These mounting parts 516 are for connecting the support base and the case 300 when the exercise equipment 100 is mounted on a separate support base, and include a mounting housing 517 that is connected to the bottom surface of the upper frame 510, a connecting lever 518 that protrudes from the lower part of the mounting housing 517 and is connected to the support base, and an elastic member (not shown) installed inside the mounting housing 517 that elastically supports the connecting lever 518.

[0039] The coupling lever 518 can be stored inside the case 300, and when needed, by rotating the coupling lever 518, the coupling lever 518 can be extended to the outside through the sixth through-hole 450 (see Figure 7) of the lower case 400 by an elastic member and coupled to the support base.

[0040] The upper plate 520 is connected to the upper side of the upper frame 510, and a second through hole 521 is formed on one side of the central part so as to communicate with the first through hole 511 of the upper frame 510, and third through holes 522 are formed on both sides in the longitudinal direction corresponding to the pull-out portions 513 of the upper frame 510. When the upper frame 510 and the upper plate 520 are connected, the pull-out hole 514 is exposed through the third through hole 522, and the wire 200 is pulled out to the outside through the pull-out hole 514.

[0041] Figure 5 is a perspective view showing the same view as in Figure 1 with the upper case removed, and Figure 6 is an exploded perspective view of Figure 5.

[0042] As shown in Figures 5 and 6, the elastic module 600 and the adjustment module 700 are installed inside the module housing 410, and when the upper case 500 and the lower case 400 are joined, the upper end of the module housing 410 protrudes from the top of the upper case 500 through the first and second through holes 511 and 521.

[0043] The module housing 410 includes a lower inner housing 420 coupled to one side of the bottom surface of the lower case 400, an upper inner housing 440 covering the upper part of the lower inner housing 420, and an outer housing 430 whose lower end is coupled along the first through-hole 511 of the upper frame 510 and whose upper end protrudes through the first through-hole 511 to the top of the upper frame 510. When the upper case 500 and the lower case 400 are coupled, the outer housing 430 surrounds and protects the upper inner housing 440 and the lower inner housing 420. The outer housing 430 further has a fifth through-hole 433 formed therein for the installation of a cover 432, an adjustment knob 840 and a shaft portion 810. In addition, a fourth through-hole 431 is formed on the upper side of the outer housing 430 so that the shaft portion 810 of the rotating member 800, which will be described later, is installed vertically, and the fourth through-hole 431 communicates with the fifth through-hole 433.

[0044] Figure 7 is a side view of the exercise equipment 100. As shown in the drawing, the lower case 400 includes a bottom surface 401 that contacts the ground and an inclined surface 402 that forms a certain angle (Θ) with the bottom surface 401. The inclined surface 402 is designed to help the user maintain balance and exercise correctly, thereby helping them to become familiar with the correct posture. The angle (Θ) that the inclined surface 402 makes with the ground is 10 to 20 degrees. Preferably, it can be formed at around 16 degrees.

[0045] Figure 8 is a perspective view of the elastic module and the adjustment module. For the sake of explanation, the elastic module 600 housed in the one-sided housing 421 has been omitted from the diagram.

[0046] As shown in Figure 8, the elastic module 600 and the adjustment module 700 are installed in the lower inner housing 420. More specifically, a pair of housing sections 421 are formed inside the inner housing 420 at a predetermined distance apart from each other, and the elastic module 600 is housed in each housing section 421. That is, a pair of elastic modules 600 are installed inside the lower inner housing 420 at a predetermined distance apart from each other, and the adjustment module 700 is installed between the pair of elastic modules 600.

[0047] Meanwhile, guide holes 422 for pulling out the wire 200 are formed on both sides of the lower end of the lower inner housing 420 so as to communicate with the housing 421. The wire 200, with one end entangled in the elastic module 600, is pulled out to the outside of the inner housing 420 through the guide hole 422 at the other end, and is extended to the outside of the case 300 via the aforementioned guide roller 515 and through the pull-out hole 514. Figures 9 and 10 are exploded perspective views of the elastic module.

[0048] The elastic module 600 plays a role in providing elastic force to the wire 200 and includes a wire roller 610 on which the wire 200 is wound, a rotating shaft 620 that rotates integrally with the wire roller 610, a spring gear 630 that is rotatably mounted on the rotating shaft 620, and a spiral spring 660 that provides elastic force to the wire 200.

[0049] Referring to Figures 9 and 10, the wire roller 610 and multiple spring gears 630 are housed in the housing section 421 of the lower inner housing 420 in a stacked configuration. At this time, the rotating shaft 620 is installed so as to pass vertically through the center of the wire roller 610 and multiple spring gears 630, but the wire roller 610 is coupled to rotate integrally with the rotating shaft 620, and the spring gears 630 are coupled to rotate freely relative to the rotating shaft 620.

[0050] The spring gear 630 includes a body 640 with a storage compartment 641 formed inside and multiple gear teeth 642 protruding along its outer surface, and a cover 650 that is attached to the upper side of the body 640 so as to conceal the storage compartment 641. A spiral spring (also known as a 'womb spring') 660 is installed in the storage compartment 641 inside the body 640.

[0051] One end of the spiral spring 660 is connected to a spring holder 670, which is fixedly connected to the rotating shaft 620, and the other end is connected to the inner surface of the body 640 of the spring gear 630. As a result, when the wire roller 610 rotates due to the pulling out of the wire 200, the rotating shaft 620, which is integrally connected to the wire roller 610, rotates together with it, and as the rotating shaft 620 rotates, the spiral spring 660, which is connected to the rotating shaft 620 at one end, undergoes elastic deformation and transmits rotational force to the spring gear 630.

[0052] At this time, if the rotation of the spring gear 630 is forcibly suppressed, the rotational force of the rotating shaft 620 is accumulated in the spiral spring 660, and the elastic force of the spiral spring 660 increases further, so the elastic force acting on the wire 200 also increases. Therefore, when the force pulling the wire 200 is removed, the wire roller 610 rotates in the opposite direction together with the rotating shaft 620 due to the elastic force of the spiral spring 660, and the wire 200 is wound onto the wire roller 610.

[0053] For this purpose, at least one locking projection 423 (see Figure 8) along the inner circumferential surface of the housing portion 421 engages with at least one of the multiple spring gears 630 to restrict the rotation of the spring gear 630. For example, as shown in Figure 8, multiple locking projections 423 can be formed protruding along the inner circumferential surface of the lower end of the housing portion 421 to restrict the rotation of the lowest spring gear 630 among the many spring gears 630.

[0054] In this way, the spring gear 630, whose rotation is restricted by the locking projection 423, provides the basic rotational force that allows the wire 200 to be wound onto the wire roller 610 by the elastic deformation of the spiral spring 660, thereby applying an elastic force to the wire 200 when the user pulls on it.

[0055] As shown in Figure 11, the upper spring gears 631, 632, 633, and 634 consist of a gear body 640 that is open on one side so that a spiral spring 660 can be inserted, a cover 650a connected to the open gear body and having radial projections 651a formed on its inner surface that contacts the spiral spring 660, and a spring fastener 670 to which the inner end of the spiral spring 660 is fixed and fixed to the rotating shaft 620. The spiral spring 660 is inserted into the spring gear 630 so that it comes into contact with the upper or lower part of the spring gear 630, thereby generating frictional force. To minimize such frictional force, radial projections 651a are formed on the bottom surface of the cover 650a. In addition, coupling holes 652a are formed in the cover 650a for coupling with the gear body 640. The spring fastener 670 has a bent groove 671 into which the inner end of the spiral spring 660 is connected, and a pair of bent grooves 671 can be formed on both sides for ease of use. The spring gears 630 installed on both rotating shafts 620 are installed opposite each other on the left and right sides. That is, one side is installed with the cover 650 on the upper side and the other side with the cover 650 on the lower side, so a pair of bent grooves 671 can be formed on both sides for ease of installation of the spiral spring 660.

[0056] Figure 12 shows the lower spring gear 635. As shown in the drawing, the spring gear 635 consists of a gear body 640 that is open on one side so that a spiral spring 660 can be inserted, a cover 650b connected to the gear body that is open on one side and has radial projections 651b formed on its inner surface that contacts the spiral spring 660, and a spring fastener 670 to which the inner end of the spiral spring 660 is fixed and fixed to the rotating shaft 620. Similar to the upper spring gear, radial projections 651b are formed on the bottom surface of the cover 650b to minimize friction with the spiral spring 660. The lower cover 650b also has coupling holes 652b for coupling with the gear body 640. The spring fastener 670 has a bent groove 671 into which the inner end of the spiral spring 660 is coupled, and a pair of bent grooves 671 may be formed on both sides for ease of use. The spring gears 630 installed on both rotating shafts 620 are installed opposite to each other on the left and right sides. That is, one side is installed with the cover 650 on the upper side and the other side with the cover 650 on the lower side, so a pair of bent grooves 671 can be formed on both sides for the convenience of installing the spiral spring 670.

[0057] Figures 13 and 14 show the wire roller 610. The wire roller 610 consists of an axial hole portion 613 into which the rotating shaft 620 is inserted and which fixes the position of the rotating shaft 620 so as to rotate the rotating shaft 620, a connecting bar 612 extending radially from the axial hole portion 613, and a winding groove portion 611 formed in a ring shape at the outer end of the connecting bar 612 into which the wire 200 is wrapped. As shown in Figure 14, the axial hole portion 613 of the wire roller 610 is formed to protrude slightly from the surface of the winding groove portion 611. The reason for this is to prevent friction between the wire roller 610 and the spring gear 630 during use and to ensure the smooth rotation of the wire roller 610.

[0058] In this invention, the adjustment module 700 plays a role in adjusting the rotational force applied to the rotating shaft 620 by the elastic force of the spiral spring 660, and thereby the elastic force applied to the wire 200.

[0059] Conventional strength training equipment allows users to adjust the weight by adding or removing weight blocks as needed. However, in the case of the exercise equipment 100 according to the present invention, the spiral springs 660 serve the role of weight blocks. In other words, the weight required for strength training can be adjusted by increasing or decreasing the number of spiral springs 660 (or the number of spring gears 630 with restricted rotation) that provide elastic force to the wire 200.

[0060] Referring to Figure 2, the adjustment module 700 includes a rotating member 800 installed on one side of the elastic module 600 and a hook member 900 elastically supported toward the rotating member 800. The spring gear 630 is locked / unlocked by the forward and backward movement of the hook member 900 due to the rotation of the rotating member 800, thereby adjusting the elastic force applied to the wire 200.

[0061] As shown in the drawing, a rotating member 800 can be installed vertically between a pair of elastic modules 600. Referring to Figure 8, the rotating member 800 includes a shaft portion 810 that is installed to be rotatable on an axis, a plurality of locking portions 820 that are formed to expand in width at predetermined intervals along the height direction of the shaft portion 810, and an adjustment knob 840 formed at the upper end of the shaft portion 810 and exposed on the upper part of the module housing 410. At this time, the plurality of locking portions 820 are arranged to face a plurality of spring gears 630 and a plurality of hook members 900, which will be described later, and locking grooves 830 are formed on the outer circumferential surface of the locking portions 820 so that the insertion portions 920 of the hook members 900, which will be described later, are inserted.

[0062] The hook member 900 is installed on one side of the inner housing 420. At this time, multiple hook members 900 can be installed facing multiple spring gears 630 and multiple system stoppers 820.

[0063] As an example, a mounting portion 424 for attaching a hook member 900 can be formed on one side of the inner housing 420, and multiple sliding spaces 425 (see Figure 2) can be formed in the vertical direction within this mounting portion 424. The hook member 900 is slidably inserted into each sliding space 425 and elastically supported in the direction of the rotating member 800 and the spring gear 630 by an elastic body 940 such as a coil spring. In addition, a back plate 426 is attached to the rear surface of the mounting portion 424 to prevent the hook member 900 from coming off, and multiple guide grooves 427 (see Figure 8) are formed through the center and on both sides of the front of the mounting portion 424 so that the insertion portion 920 and the locking projection 930 of the hook member 900, which will be described later, can protrude into the inside of the housing portion 421.

[0064] The hook member 900 includes a plate-shaped slide body 910 (see Figure 15), an insertion portion 920 protruding from the front end of the slide body 910, locking projections 930 protruding from both front ends of the slide body 910 toward the spring gear 630, and an elastic body 940 such as a coil spring that elastically supports the slide body 910.

[0065] The hook member 900, mounted in the sliding space 425, has its insertion portion 920 facing the locking portion 820 of the rotating member 800, and its locking projection 930 facing the spring gear 630. When the locking projection 930 engages with the teeth 642 of the spring gear 630 due to the sliding movement of the hook member 900, the rotation of the spring gear 630 is restricted, and elastic force is accumulated in the spiral spring 660 inside the spring gear 630 when the rotating shaft 620 rotates due to the pulling out of the wire 200.

[0066] Therefore, the user can adjust the elastic force applied to the wire 200 by increasing or decreasing the number of spring gears 630 whose rotation is restricted by the hook member 900. In other words, the more spring gears 630 whose rotation is restricted by the hook member 900 there are, the more spiral springs 660 that are elastically deformed by the rotation of the wire roller 610 and the rotating shaft 620 there are, and the more elastic force is applied to the wire 200 from the spiral springs 660 through the rotating shaft 620, producing the same effect as conventionally adding weight blocks to increase the weight.

[0067] Figures 15 and 16 are diagrams showing the operating state of the adjustment module.

[0068] The user can adjust the elastic force applied to the wire 200 by rotating the rotating member 800. For example, if all of the multiple hook members 900 are separated from the spring gear 630 as shown in Figure 15, only the spiral spring 660 of the spring gear 630 (e.g., the lowest spring gear 630), whose rotation is restricted by the locking projection 423, provides elastic force to the wire 200.

[0069] Here, as shown in Figure 16, if the rotating member 800 is rotated in one direction, the elastic force of the elastic body 940 causes the hook member 900 to move in the direction of the rotating member 800, and the insertion portion 920 of the hook member 900 is inserted into the locking groove 830 of the retaining portion 820.

[0070] At this time, the locking projection 930 of the hook member 900 engages with the teeth 642 of the spring gear 630, thereby restricting the rotation of the spring gear 630 and increasing the number of spiral springs 660 that provide elastic force to the wire 200. In other words, in addition to the spiral spring 660 of the spring gear 630 whose rotation is conventionally restricted by the locking projection 423 (for example, the lowest spring gear 630), elastic force is now also applied to the wire 200 by the spiral spring 660 of the spring gear 630 whose rotation is restricted by the hook member 900 (for example, the uppermost spring gear 630).

[0071] Multiple spring gears 630 are stacked along the rotation axis 620 in the housing section 421 of the lower inner housing 420, and hereafter, starting from the uppermost spring gear 630, they will be referred to as the first spring gear 631 (see Figure 9), the second spring gear 632, the third spring gear 633, the fourth spring gear 634, and the fifth spring gear 635. Here, the lowest spring gear 630 whose rotation is restricted by the locking projection 423 corresponds to the fifth spring gear 635, and a wire roller 610 can be interposed between the fourth spring gear 634 and the fifth spring gear 635.

[0072] Furthermore, the numerous hook members 900 can be distinguished as the first hook member 901 (see Figure 2), the second hook member 902, the third hook member 903, and the fourth hook member 904, starting from the uppermost hook member 900. The first to fourth hook members 901 to 904 are opposite the first to fourth spring gears 631 to 634, respectively, and the rotation of the rotating member 800 sequentially restricts the rotation of the first to fourth spring gears 631 to 634 while increasing the elastic force applied to the wire 200. This will be explained in more detail below with reference to Figure 17.

[0073] Figure 17 is a plan view of the rotating member of the adjustment module.

[0074] As shown in Figure 17, locking grooves 830 are formed in each of the multiple locking parts 820. Hereinafter, the uppermost locking part 820 formed on the rotating member 800 will be referred to as the first locking part 821, and the locking parts below it will be referred to as the second, third, fourth locking parts 822, 823, and 824, respectively.

[0075] The first locking section 821 has a total of four locking grooves 830 spaced at 45° intervals, and the second locking section 822 has a total of three locking grooves 830 spaced at 45° intervals. The angular spacing between adjacent pairs of locking grooves 830 can be selected as needed. Additionally, the third locking section 823 has a total of two locking grooves 830 spaced at 45° intervals, and the fourth locking section 824 has one locking groove 830.

[0076] At this time, the second locking groove 830 of the first locking section 821 is formed on the same vertical line as the first locking groove 830 of the second locking section 822, and the third locking groove 830 of the first locking section 821 is formed on the same vertical line as the second locking groove 830 of the second locking section 822 and the first locking groove 830 of the third locking section 823. Furthermore, the fourth locking groove 830 of the first locking section 821 is formed on the same vertical line as the third locking groove 830 of the second locking section 822, the second locking groove 830 of the third locking section 823 and the locking groove 830 of the fourth locking section 824.

[0077] Specifically, with reference to the plan view shown in Figure 17, the locking groove 830 of the first locking portion 821 is formed at a pivot point (A) approximately 45° counterclockwise from the contact pivot point (O) of the insertion portion 920 of the hook member 900, and the locking grooves 830 of the first locking portion 821 and the second locking portion 822 are superimposed and formed at a pivot point (B) approximately 90° counterclockwise from the contact pivot point (O) of the insertion portion 920 of the hook member 900. Furthermore, the locking grooves 830 of the first locking portion 821, the second locking portion 822, and the third locking portion 823 are superimposed at a pivot point (C) approximately 135° counterclockwise from the contact pivot point (O) of the insertion portion 920 of the hook member 900, and the locking grooves 830 of the first locking portion 821, the second locking portion 822, the third locking portion 823, and the fourth locking portion 824 are superimposed at a pivot point (D) approximately 180° counterclockwise from the contact pivot point (O) of the insertion portion 920 of the hook member 900.

[0078] The user can rotate the rotating member 800 by gripping the adjustment knob 840 as needed. When the rotating member 800 is rotated approximately 45° clockwise in Figure 13, the first hook member 901 moves toward the rotating member 800 due to the elastic force of the elastic body 940, and the insertion part 920 is inserted into the locking groove 830 of the first stopper part 821 (fulcrum A). At this time, the second to fourth hook members 902 to 904 do not move and maintain their original positions, and the locking projection 930 of the first hook member 901 engages with the first spring gear 631, restricting the rotation of the first spring gear 631.

[0079] If the rotating member 800 is rotated further clockwise by approximately 45°, the insertion portions 920 of the first and second hook members 901 and 902 are inserted into the locking grooves 830 of the first and second stopper portions 821 and 822 (point B). At this time, the third and fourth hook members 903 to 904 do not move but maintain their positions, and the locking projections 930 of the first and second hook members 901 and 902 engage with the first and second spring gears 631 and 632, restricting the rotation of the first and second spring gears 631 and 632.

[0080] Thereafter, if the rotating member 800 is rotated further clockwise by approximately 45°, the insertion portions 920 of the first to third hook members 901 to 903 are inserted into the locking grooves 830 of the first to third stopper portions 821 to 823 (C pivot point). At this time, the fourth hook member 904 does not move but maintains its position, and the locking projections 930 of the first to third hook members 901 to 903 engage with the first to third spring gears 631 to 633, restricting the rotation of the first to third spring gears 631 to 633.

[0081] Thereafter, if the rotating member 800 is rotated further clockwise by approximately 45°, the insertion portions 920 of the first to fourth hook members 901 to 904 are inserted into the locking grooves 830 of the first to fourth stopper portions 821 to 824 (point D). At this time, the locking projections 930 of the first to fourth hook members 901 to 904 engage with the first to fourth spring gears 631 to 634, restricting the rotation of the first to fourth spring gears 631 to 634.

[0082] In other words, each time the rotating member 800 is rotated clockwise in approximately 45° increments on the drawing, the number of spring gears 630 whose rotation is restricted by the hook member 900 increases. This increases the number of spiral springs 660 that provide elastic force to the wire 200 through the rotating shaft 620, and consequently increases the elastic force, i.e., the weight, on the wire 200.

[0083] On the other hand, in one embodiment of the present invention, the exercise equipment 100 allows the user to perform muscle exercises while standing on the case 300 and pulling on the wires 200 on both sides after the case 300 has been secured to the bottom.

[0084] In another embodiment, the exercise equipment 100 can be installed vertically on a wall or a separate vertical support stand 10, and Figure 18 shows the exercise equipment installed on a separate vertical support stand in this manner.

[0085] Figure 19 is a rear perspective view of the exercise equipment 100 installed on a vertical support base 10. As shown in the drawing, the exercise equipment 100 can be connected to the vertical support base 10 through a mounting section 20. The mounting section 20 consists of a front connector 27 formed to engage with a coupling lever 518 protruding from the bottom surface of the lower case 400, a hook connector 26 attached to the back of the front connector 27 and secured by engaging with the coupling lever 518, an intermediate connector 24 connected to the back of the front connector 27, a racking connector 23 connected to the bottom of the intermediate connector 24, a rear connector 22 connected to the back of the racking connector 23, and a support base guide fixing device 21 installed on the back of the rear connector 22 to guide and fix the position of the vertical support base 10. The racking connector 23 further includes a lever 25 for inserting a locking bar 251 into a hole 11 formed in the vertical support base 10. Furthermore, the locking bar 251 may be elastically racked and unracked by the spring 252.

[0086] Although embodiments of the present invention have been described above, it is understood that a person with ordinary skill in the art to which the present invention belongs can modify and implement the invention in various ways without departing from the scope of the claims. [Explanation of Symbols]

[0087] 100 exercise equipment 200 wires 300 cases 400 Lower Case 410 Module Housing 420 Lower inner housing 430 Outer Housing 440 Upper inner housing 500 Top Case 510 Upper frame 520 Top Plate 600 elastic modules 610 Wire Roller 620 Rotation axis 630 Spring Gear 660 Spiral Spring 700 Adjustment Module 800 Rotating Member 810 Shaft 820 System stopping part 840 Adjustment Knob 900 Hook component

Claims

1. An exercise device comprising a case with an internal space, an elastic module installed in the space and providing elastic force to a wire extending to the outside of the case, and an adjustment module installed on one side of the elastic module and adjusting the elastic force applied to the wire, The elastic module includes a wire roller around which the wire is wound, a rotating shaft that rotates integrally with the wire roller, a spring gear rotatably mounted on the rotating shaft, and a spiral spring installed inside the spring gear to provide elastic force to the wire. The spring gear is characterized by comprising a gear body that is open on one side so that the spiral spring can be inserted, a cover connected to the gear body that is open on one side and having radial projections formed on its inner surface that contacts the spiral spring, and a spring fastener that fixes the inner end of the spiral spring to the rotating shaft.

2. The aforementioned wire roller is The exercise device according to claim 1, characterized in that it comprises an axis hole portion that is inserted into the rotating shaft and fixedly mounted on the rotating shaft so that the rotating shaft can be rotated, a connecting bar that extends radially from the axis hole portion, and a winding groove portion formed in the shape of a ring at the outer end of the connecting bar into which the wire is wrapped.

3. The exercise device according to claim 2, characterized in that the upper and lower ends of the shaft hole portion are formed to be higher than the upper and lower ends of the connecting bar and the winding groove portion.

4. The exercise device according to claim 3, characterized in that the connecting bar is formed lower than the upper and lower ends of the winding groove.

5. The exercise device according to claim 4, characterized in that the spring fixing device has a bending groove formed so that the inner end of the spiral spring can be bent and fixed.

6. The exercise equipment according to claim 5, characterized in that the case includes a bottom surface that contacts the ground and an inclined surface formed so as to tilt upward at a certain angle on the bottom surface.

7. The exercise equipment according to claim 6, characterized in that the inclination angle of the inclined surface is 10 to 20 degrees.

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